add "Chromium Linux Goma RBE Staging" in chromium.goma

Bug: 831451
Bug: 831046
Change-Id: I6d48e0e245c0d8c3fd3a505b9eaa6f542192457e
Reviewed-on: https://chromium-review.googlesource.com/1006455Reviewed-by: Shinya Kawanaka <shinyak@chromium.org>
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Commit-Queue: Fumitoshi Ukai <ukai@chromium.org>
Cr-Commit-Position: refs/heads/master@{#550034}

infra/config/global/luci-milo-dev.cfg

@@ -2438,6 +2438,10 @@ consoles: {
     name: "buildbot/chromium.goma/CrWinClexeGomaGCEStaging"
     category: "gce"
   }
+  builders: {
+    name: "buildbot/chromium.goma/Chromium Linux Goma RBE Staging"
+    category: "rbe"
+  }
 }
 
 consoles: {

infra/config/global/luci-milo.cfg

@@ -2851,6 +2851,10 @@ consoles: {
     name: "buildbot/chromium.goma/CrWinClexeGomaGCEStaging"
     category: "gce"
   }
+  builders: {
+    name: "buildbot/chromium.goma/Chromium Linux Goma RBE Staging"
+    category: "rbe"
+  }
 }
 
 consoles: {

testing/buildbot/chromium.goma.json

@@ -20,6 +20,25 @@
       }
     ]
   },
+  "Chromium Linux Goma RBE Staging": {
+    "additional_compile_targets": [
+      "all"
+    ],
+    "gtest_tests": [
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
+        "test": "base_unittests"
+      },
+      {
+        "swarming": {
+          "can_use_on_swarming_builders": true
+        },
+        "test": "content_unittests"
+      }
+    ]
+  },
   "Chromium Linux Goma Staging": {
     "additional_compile_targets": [
       "all"

testing/buildbot/waterfalls.pyl

@@ -849,6 +849,14 @@
           'gtest_tests': 'goma_gtests',
         },
       },
+      'Chromium Linux Goma RBE Staging': {
+        'additional_compile_targets': [
+          'all',
+        ],
+        'test_suites': {
+          'gtest_tests': 'goma_gtests',
+        },
+      },
       'Chromium Linux Goma Staging': {
         'additional_compile_targets': [
           'all',

tools/mb/mb_config.pyl

@@ -271,6 +271,7 @@
       'Chromium Mac Goma GCE Staging': 'release_bot',
       'CrWinClexeGomaGCEStaging': 'release_bot_x86_minimal_symbols_disable_nacl_no_clang',
       'CrWinClangGomaGCEStaging': 'win_clang_release_bot_disable_nacl',
+      'Chromium Linux Goma RBE Staging': 'release_bot',
     },
 
     'chromium.gpu': {